Customers and partners who've been holding their breath waiting for Beta 2 of Windows Vista before getting serious about testing Microsoft's next-generation operating system can exhale. <A HREF="http://www.eweek.com/article2/0,1895,1916366,00.asp?kc=ewnws013006dtx1k0000599">There will be no single, catch-all Beta 2 of Vista,</A> according to Jim Allchin, co-president of Microsoft's Platform Products & Services Division. Instead, Microsoft is planning to rely increasingly on CTP (Community Technology Preview) builds to get its feedback from Windows testers.